My suggestion, thinking aloud so it may not work, is that where we have a term like MOOC / Massively Open Online Course then the definition page shoud be called the full expanded name (eg Massively Open Online Course) and any fuller description should go on a page called by the abbreviation (eg MOOC). The definition could/should be transcluded (embedded) within the fuller description (eg Massively Open Online Course would be transcluded within MOOC).